New to HRT, hoping to get some ideas from someone who knows more than me. Would like to replace the drafty aluminum basement windows, that are set in block, and on top of a brick sill. The bricks are full length and set on about 10 degree slope. The first quarter of the brick sill is on the inside with the remainder on the exterior of the window. Will I install the window with the back edge of the window on the brick with a piece of treated lumber to fit underneath the front part of the window? Thanks!